I have an electric door chime that plays songs.
I recently changed the outside bar you push. The new bar did not have a
resistor (I think that was what it is) across the two screws.
I pushed the bar, and the chime would only play as long as you held in the
bar. I put the resistor on the new bar from the old one, same thing.
Anyone know what I can do to get this to play the whole song with one single
push of the bar?
About the only thing I didn't do is reverse the resistor (?) and try that.
But would that make a difference?
The chime plays fine, and will play the whole tune, but you just have to
stand there and hold it, or it only plays the first note or two depending on
how long the person holds the button down for.
Thanks in advance.
Looks like a resistor. Wire in, wire out, about 1/8" diameter body, but
only about 1/8" to 3/16" body length. Not sure about the color bands, would
have to go pull it tomorrow to see if it does have color bands indicating
without your purchase of an inexpensive multimeter, i don't know how
to suggest you test this item. is it possible that the old button
opened instead of closed the circuit to start the music and the
resistor held power to the device to play the music followed by
standby mode? simple answers: a resistor has no polarity it is a 2-way
street; a diode has polarity, it is a one-way street.
here's the who/what/where/when/why/how to stimulate further
exploration of your question.
what/was this a repair of a problem? what symptom were you repairing?
are there any batteries involved in the chime? any batteries in the
transmitter button? is the
button lighted when pushed/not pushed?
where/country and voltage used at device? wired or wireless doorbell?
how many wires? is there an intercom related to this device on these
when/was this manufactured or installed?
why/was there a malfunction to begin with? was this device working
before you changed it?
is it possible that an original higher voltage transformer requires a
dropping or holding resistor or diode to install the the newer device
requiring a different voltage?
here's a schematic of someone's homemade doorbell:
see also wikipedia.
for an incredible FAQ see Troubleshooting and Repair of Consumer
Electronics Equipment at:
"For example, I was able to quickly identify the trigger transistor of
wireless door bell by using my finger to locate the point that
chimes to sound. This quickly confirmed that the problem was in
front end or decoder and not the audio circuitry."
Other stuff snipped.
The plastic portion of the bar you pushed had broken due to age. I put in
the electronic component as the other one came out. I will be working in
that area today, and am going to take it out again, and reverse it, and see
what happens. I will see what the readings are on it, as I have a tester.
It is a diode, I have an old DAK unit that plays 40 songs, make sure
the diode is making good contact on the screws. I forget if it
matters which way, since it is ac voltage to start with, I do not
think so. But when the diode is not connected - you get that issue.
Thanks to those who helped. I went out and reversed the diode today, and it
worked perfectly the first time.
I think it is a diode rather than a resistor because it only has one silver
color band on it, and IIRC, resistors have at least two color bands. The
length of the "barrel" part is only about its diameter.
Anyway, if the polarity of the component was the problem, reversing it fixed
it. If it just wasn't getting contact, then redoing it made contact. The
question of polarity is not relative once it works. I didn't want to double
test it, because I learned that when you get it working, LEAVE IT ALONE.
A veterinarian friend of mine said something that they told him in vet
school. "Better is the enemy of good. If you've done something of a good
quality, leave it alone, and don't try to make it better."
Anyway, "Be it ever so humble, there's no place like home" now plays start
to finish with one jab on the new door bell bar.
I'm glad you got it working. Now here's my question, which kind of
relates to your "good enough" theory:
Why does anyone need more than a simple Ding-Dong to know if someone
is at the door?
In fact, our chimer went from Ding-Dong to just Dong many, many years
ago. I never saw any sense in spending money to fix it. Everytime
someone comes to the door and rings the bell, we know it. It's always
been "good enough".
Partly kidding, but mostly serious.
I'm the other way. I have so few friends I desperately need to talk
to anyone who comes to the door.
When I spent a lot of time in the baseent, I added a bell there, and
when I got hooked on the computer, I connected a wireless doorbell
transmitter to the current doorbell system, and put a
My bells only go ding dong, but I can understand the OP. In my car I
used to have airhorns, aaoogah, and the original horns, and switches
to go from one to the other. The current car has no room under the
hood for such things. :(
Our chime plays Westminster bell. It is old electro/mechanical rotary
gong with this multiple tuned pipes hanging down. Front door, back
door, side door all plays different tune. Been with my family almost
half a century(sounds better than 50 years, LOL). I take it with me when
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